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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Perrard, S. Fort, E. Couder, Y. |
| Description | Country affiliation: France Author Affiliation: Perrard S ( Laboratoire Matière et Systèmes Complexes, Université Paris Diderot, CNRS UMR 7057, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France.); Fort E ( Institut Langevin, ESPCI Paris, PSL Research University, CNRS UMR 7587, 1 rue Jussieu, 75238 Paris, France.); Couder Y ( Laboratoire Matière et Systèmes Complexes, Université Paris Diderot, CNRS UMR 7057, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet, 75013 Paris, France.) |
| Abstract | The investigation of dynamical systems has revealed a deep-rooted difference between waves and objects regarding temporal reversibility and particlelike objects. In nondissipative chaos, the dynamic of waves always remains time reversible, unlike that of particles. Here, we explore the dynamics of a wave-particle entity. It consists in a drop bouncing on a vibrated liquid bath, self-propelled and piloted by the surface waves it generates. This walker, in which there is an information exchange between the particle and the wave, can be analyzed in terms of a Turing machine with waves as the information repository. The experiments reveal that in this system, the drop can read information backwards while erasing it. The drop can thus backtrack on its previous trajectory. A transient temporal reversibility, restricted to the drop motion, is obtained in spite of the system being both dissipative and chaotic. |
| File Format | HTM / HTML |
| ISSN | 00319007 |
| e-ISSN | 10797114 |
| Journal | Physical Review Letters |
| Issue Number | 9 |
| Volume Number | 117 |
| Language | English |
| Publisher | American Physical Society |
| Publisher Date | 2016-08-26 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Physics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physics and Astronomy |
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